911 dispatcher practice
911 Dispatcher Memory & Recall Practice Test
Study details for a short period, then answer from memory.
Included in Standard ($29) and Complete ($49). One payment, unlimited attempts, no subscription.
What memory & recall measures
Short-term retention of names, addresses, vehicle descriptions and numbers after the source is gone.
These assessments are modular — an agency chooses which components to run and sets its own minimum for each one. We can tell you what the skill is and how to get better at it. We can't tell you what score your agency wants, and anyone who quotes you a universal one is guessing.
Sample memory & recall questions
Read the passage, then answer. In the timed drill the passage disappears before the questions appear, so here, cover it up first if you want the real thing. Open each one to see the answer and why.
Question 1
CALLER INFORMATION Name: Denise Corbett. Callback: (555) 402-1189. Location: 3320 Sycamore Lane, Apartment 7B. Reporting: loud argument in the unit directly above hers for the past twenty minutes, with what sounded like furniture being dragged. She is home with her two children, ages 4 and 9. She states the building's front door is propped open. She will meet responders in the lobby.
What was the caller's callback number?
- (555) 402-1198
- (555) 420-1189
- (555) 402-1189
- (555) 402-1889
Show answer
C. (555) 402-1189 — The callback was (555) 402-1189. Chunk it as 402 / 11 / 89 — three short pieces are far easier to hold than seven loose digits.
Question 2
VEHICLE DESCRIPTION 2018 Ford Explorer, dark green, four-door SUV. Plate: TRK-8402. Passenger-side mirror is missing and there is heavy damage to the right rear quarter panel. Two occupants: driver is a heavyset male with a full beard, passenger is a female with long blonde hair. A child safety seat is visible in the second row. Vehicle last observed westbound on Ridgeway Boulevard.
What was the license plate on the vehicle?
- TRK-8402
- TKR-8402
- TRK-8420
- TRB-8402
Show answer
A. TRK-8402 — The plate was TRK-8402. Read letters as a word ('truck' without vowels) and split the digits 84 / 02 to keep them from scrambling.
Question 3
UNIT ASSIGNMENTS — 08:00 shift Unit 12 is on a traffic collision at 4th Avenue and Maple Street since 07:52. Unit 14 is on an alarm call at 880 Canal Road since 07:40. Unit 19 is on a welfare check at 215 Sycamore Lane since 08:05. Unit 22 is on a theft report at the Ridgeway Boulevard market since 08:11. Unit 27 is available and staged at the north lot.
Which unit was assigned to the call on Sycamore Lane?
- Unit 14
- Unit 12
- Unit 22
- Unit 19
Show answer
D. Unit 19 — Unit 19 took the welfare check at 215 Sycamore Lane. Pair each unit to its street once out loud — 19 to Sycamore — rather than trying to hold the whole board at once.
How our drill works
It's timed. You get a countdown clock and a fixed run length, because working accurately with a clock visible is a different skill from working accurately without one, and only one of them is being assessed.
Each run samples a fresh set of questions from our bank, so repeated attempts give you a different selection rather than the same items in the same order. Every question carries a written explanation — the reasoning is the part that transfers to the next question.
When the run ends you get a breakdown, not just a percentage. The point is to show you where the points went, so the next run can be different.
Which assessments include memory & recall
Agencies use different vendors, and each picks its own combination of components. This module appears in the batteries below — but check the job posting, because an agency using one of them may not run every part of it.
CritiCall
Biddle Consulting Group, Inc.
A computer-based pre-employment test for 911 dispatchers and call takers from Biddle Consulting Group, which says it is used by over 1,500 agencies. It is modular: Biddle says the software holds over 20 tests and each agency picks the ones that fit its jobs, so no two agencies necessarily test the same set. Biddle puts a typical sitting at one to three hours.
POST Entry-Level Dispatcher Selection Test Battery
California Commission on Peace Officer Standards and Training
California's standard written test for public safety dispatchers: eleven short tests of verbal, reasoning, memory and perceptual ability. Six are written and five play audio, answers are marked on paper, and scores are reported as T-scores.
How to get better at memory & recall
Specific to this module, and specific enough to change what you do on your next run.
Rehearse out loud during the study window
Silently re-reading feels productive and retains very little. Saying the details aloud, or subvocalizing them in a fixed order, retains substantially more across the gap.
Chunk the numbers
A seven-digit number held as seven digits is at the edge of what most people can hold. Held as two or three chunks, it is comfortable. Do this automatically with phone numbers, house numbers and plates.
Use the same slot order every time
Name, address, vehicle, number — pick an order and always study in it. A consistent structure gives you a retrieval path, so a detail you cannot recall directly can often be reached by walking the sequence.
Accept that you will lose some, and choose which
You will not hold everything. Deciding up front to lock down the details most likely to be asked, rather than spreading attention evenly and half-holding all of them, produces a better score.
Do not re-study in a random order
Jumping around during the study window feels thorough and actively interferes with retention. One structured pass, then a second structured pass in the same order, beats four scattered ones.
Guide: how memory sections work, and the habits that fix them
You cannot expand your working memory in two weeks, but capacity is not what these sections measure. They measure how you encode details in the few seconds you have them, and encoding is a habit.
How the main tests handle memory
- California POST. Two memory tests. Public Safety Bulletin gives three minutes to study a one-page bulletin, then questions from memory. Recalling Facts & Details plays a simulated call with no notes allowed. The Call-Taking and Oral Directions tests, by contrast, allow notes.
- CritiCall. Biddle lists Memory Recall plus audio and numeric audio versions; its candidate guide describes learning written descriptions to recognize later and remembering heard numbers such as phone numbers or plates over a very short period. Which ones you get depends on the agency.
- NTN ECOMM. No unaided memory test. Its note-taking test is answered from notes taken during the video calls.
The gap before the questions is the real test
Without something in between, most people would pass by repeating the address on a loop. Whatever comes between the material and the questions (arithmetic, another item, more audio) breaks that loop, and what survives is what you actually encoded. Wrong options are often near misses, an address one digit off or a name one letter off, so vague familiarity is not enough.
Encode by structure
Reading the material top to bottom three times builds a flat list, and every item in it can be lost on its own. Sort details into labeled groups as they arrive (who, where, what vehicle, which numbers) so each label becomes a retrieval cue. Attach each number to its label, because a number recalled against the wrong thing scores the same as a forgotten one.
What does not work
- Re-reading. Familiarity rises after the second pass; recall does not.
- Memory palaces. Built for long lists studied over minutes, not short items needed within a minute.
- Digging for a lost detail. Give your best reconstruction and move on; the time comes out of items you can still answer.
Practice with interference built in
Invent a caller (Dana Whitcombe, 3312 Ospringe Lane, silver pickup, plate KLV-4408, callback 555-0139), put it in your slot order, then do thirty to sixty seconds of mental arithmetic before writing it down. Change every detail and repeat. For audio, have someone read you a seven-digit number and type it from memory at once, a routine Biddle itself suggests. Then log what you lose: numbers means chunking is not running; mixing up whose detail is whose means your groups were not distinct; losing everything after the interference means you were rehearsing rather than encoding. The audio memory drill trains the heard version.
Practice these next
Character Comparison
Decide whether two strings of letters and numbers are identical.
Sentence Clarity
Choose the clearer, better-constructed version of a sentence.
Reading Comprehension
Answer questions on a short passage of procedural text.
Data Entry
FreeType caller and incident details into a fixed-field form, accurately, against the clock.
Common questions
How long do I get to study the details?
A short fixed window, after which the source is removed and the questions appear. You cannot go back to it — that is the whole design of the module.
What sort of details am I asked to remember?
Names, addresses, vehicle descriptions and numbers — the categories a telecommunicator holds between hearing them and typing them.
Can I write things down?
Our drill does not stop you, but you will be testing something other than the skill being measured. Whether notes are permitted in any given assessment is set by the agency administering it.
Does memory recall get better with practice?
The underlying capacity does not change much, but the encoding strategy does — chunking, rehearsal and a consistent study order are learnable, and they account for most of the difference between candidates.
Can I take notes during memory sections?
Assume not, and practice without them. POST's Recalling Facts & Details test explicitly allows no notes. Other sections differ: POST's Call-Taking and Oral Directions tests and NTN's ECOMM note-taking test are built around notes. Read each section's instructions.
My recall is fine until something interrupts me. Is that fixable?
That is the normal pattern, and it is why these sections put something in between. Chunking helps because fewer, bigger items survive interruption better, and a fixed slot order gives you a route back in afterward.
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